diff --git a/pkgs/development/python-modules/bleach-allowlist/default.nix b/pkgs/development/python-modules/bleach-allowlist/default.nix
index 870266a36292..3cfdea9dc06c 100644
--- a/pkgs/development/python-modules/bleach-allowlist/default.nix
+++ b/pkgs/development/python-modules/bleach-allowlist/default.nix
@@ -11,6 +11,8 @@ buildPythonPackage (finalAttrs: {
   version = "1.0.3";
   pyproject = true;
 
+  __structuredAttrs = true;
+
   src = fetchPypi {
     inherit (finalAttrs) pname version;
     hash = "sha256-VuIghgeaDmoxAK6Z5NuvIOslhUhlmOsOmUAIoRQo2ps=";